CN106640965A - Five-degree-of-freedom permanent magnet biased magnetic suspension bearing - Google Patents
Five-degree-of-freedom permanent magnet biased magnetic suspension bearing Download PDFInfo
- Publication number
- CN106640965A CN106640965A CN201710006200.1A CN201710006200A CN106640965A CN 106640965 A CN106640965 A CN 106640965A CN 201710006200 A CN201710006200 A CN 201710006200A CN 106640965 A CN106640965 A CN 106640965A
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- 239000000725 suspension Substances 0.000 title claims abstract description 45
- 238000004804 winding Methods 0.000 claims description 60
- 230000005389 magnetism Effects 0.000 claims description 7
- 238000007600 charging Methods 0.000 claims description 4
- 230000008878 coupling Effects 0.000 abstract description 3
- 238000010168 coupling process Methods 0.000 abstract description 3
- 238000005859 coupling reaction Methods 0.000 abstract description 3
- 230000007547 defect Effects 0.000 abstract 1
- 230000004907 flux Effects 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 7
- 238000006073 displacement reaction Methods 0.000 description 4
- 238000007667 floating Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000000314 lubricant Substances 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 239000000696 magnetic material Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C32/00—Bearings not otherwise provided for
- F16C32/04—Bearings not otherwise provided for using magnetic or electric supporting means
- F16C32/0406—Magnetic bearings
- F16C32/044—Active magnetic bearings
- F16C32/0459—Details of the magnetic circuit
- F16C32/0461—Details of the magnetic circuit of stationary parts of the magnetic circuit
- F16C32/0463—Details of the magnetic circuit of stationary parts of the magnetic circuit with electromagnetic bias, e.g. by extra bias windings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C32/00—Bearings not otherwise provided for
- F16C32/04—Bearings not otherwise provided for using magnetic or electric supporting means
- F16C32/0406—Magnetic bearings
- F16C32/044—Active magnetic bearings
- F16C32/0459—Details of the magnetic circuit
- F16C32/0461—Details of the magnetic circuit of stationary parts of the magnetic circuit
- F16C32/0465—Details of the magnetic circuit of stationary parts of the magnetic circuit with permanent magnets provided in the magnetic circuit of the electromagnets
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C32/00—Bearings not otherwise provided for
- F16C32/04—Bearings not otherwise provided for using magnetic or electric supporting means
- F16C32/0406—Magnetic bearings
- F16C32/044—Active magnetic bearings
- F16C32/0459—Details of the magnetic circuit
- F16C32/0468—Details of the magnetic circuit of moving parts of the magnetic circuit, e.g. of the rotor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C32/00—Bearings not otherwise provided for
- F16C32/04—Bearings not otherwise provided for using magnetic or electric supporting means
- F16C32/0406—Magnetic bearings
- F16C32/044—Active magnetic bearings
- F16C32/0474—Active magnetic bearings for rotary movement
- F16C32/0489—Active magnetic bearings for rotary movement with active support of five degrees of freedom, e.g. two radial magnetic bearings combined with an axial bearing
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Magnetic Bearings And Hydrostatic Bearings (AREA)
Abstract
The invention discloses a five-degree-of-freedom permanent magnet biased magnetic suspension bearing. The five-degree-of-freedom permanent magnet biased magnetic suspension bearing aims to overcome the defects, mentioned in the background art, of permanent magnet type magnetic suspension bearings, electromagnetic biased magnetic suspension bearings and permanent magnet biased magnetic suspensions in the prior art. According to the adopted technical scheme, the five-degree-of-freedom permanent magnet biased magnetic suspension bearing comprises an annular rotor, two annular radial stators, two permanent magnets and an annular axial stator. The five-degree-of-freedom permanent magnet biased magnetic suspension bearing is simple and compact in structure and can achieve five-degree-of-freedom active control, and besides, magnetic circuits of two-degree-of-freedom magnetic fields in the radial direction are free of coupling.
Description
Technical field
The present invention relates to a kind of magnetic suspension bearing, specifically a kind of permanent magnet bias suspension of five-freedom degree magnetic bearing, belong to magnetic
Suspension field.
Background technology
Early in 1842, English physicist Earnshaw was just studied and discussed to magnetic suspension bearing technology, magnetic
The general principle of suspension bearing technology is rotating shaft is realized using the magnetic field force between stator core and rotor core contactless
Supporting.Because, without Mechanical Contact, magnetic suspension bearing has advantages below between stator and rotor：
1. high rotating speed can be born.The rotating shaft supported using magnetic suspension bearing can be overcritical, per minute tens of
Run under ten thousand turns of operating mode, its peripheral speed is only limited by rotating shaft material intensity.As a rule, in journal diameter identical feelings
Under condition, the rotating ratio that the rotating shaft supported using magnetic suspension bearing can reach is about high 2 times using the rotating shaft of rolling bearing supporting, than
Rotating shaft using sliding supported condition is about high 3 times.German FAG companies are drawn by test：The dn values of rolling bearing, i.e. bearing
The product of average diameter and main shaft limit speed, about 2.5～3 × 106Mmr/min, the dn values of sliding bearing about 0.8～
2×106Mmr/min, the dn values about 4～6 × 10 of magnetic suspension bearing6mm·r/min。
2. friction power loss is less.In 10000r/min, only about hydrldynamic pressure lubrication is propped up the power consumption of magnetic suspension bearing
The 17% of 6% for holding, only rolling bearing, energy-saving effect is obvious.
3. life-span length, maintenance cost is low.It is inorganic between stator and rotor because magnetic suspension bearing relies on magnetic field force suspension rotating shaft
Tool is contacted, therefore is not existed by friction, abrasion and the life problems brought of contact fatigue, thus the life-span of magnetic suspension bearing with
Reliability is far above traditional mechanical bearing.
4. lubricant need not be added.Due to there is no mechanical friction between stator and rotor, lubrication need not be added during work
Agent, therefore there is no lubricant to the pollution problem caused by environment, prohibitting the use of lubricant and forbidding the occasion for polluting, such as
The occasions such as vacuum equipment, ultra-clean desinfection chamber, magnetic suspension bearing has unrivaled advantage.
The difference of mode is set up according to magnetic field, magnetic suspension bearing can be divided into permanent-magnet type, electromagnetism eccentrically arranged type and permanent magnet bias type
Three types.
Permanent-magnet type magnetic suspension bearing mainly using repulsion or suction intrinsic between magnetic material (as between permanent-magnet material,
Between permanent-magnet material and soft magnetic materials) realizing the suspension of rotating shaft, its simple structure, energy loss is few, but rigidity and damping
It is all smaller.
Electromagnetism eccentrically arranged type magnetic suspension bearing sets up bias magnetic field by galvanic magnetic bias winding is passed through in air gap, by being passed through
Size and Orientation is all set up in air gap control magnetic field, the two magnetic fields by the controling winding of the alternating current of real-time control
Superposition in air gap and counteracting generate size and Orientation can active control magnetic attraction force, it is achieved thereby that rotor
Stable suspersion, such magnetic suspension bearing rigidity is big, can with accurate control, but produce the volume needed for case unit capacity,
Weight and power consumption are also all than larger.
Permanent magnet bias type magnetic suspension bearing substitutes magnetic bias coil to produce required bias magnetic field using permanent-magnet material, can
Largely reduce magnetic suspension bearing energy loss, with magnetic suspension bearing technology Aero-Space, energy stores and
The aspects such as the extensive application in the fields such as energy conversion, power consumption, volume, performance to magnetic suspension bearing propose higher and higher wanting
Ask, make it have irreplaceable advantage, permanent magnet bias type magnetcisuspension in these fields the characteristics of permanent magnet bias type magnetic suspension bearing
Floating bearing technology also becomes an important directions of magnetic suspension bearing technical research and development.
The content of the invention
The technical problem to be solved is：For the permanent-magnet type magnetcisuspension of the prior art referred in background technology
Floating axle holds, the shortcoming that electromagnetism eccentrically arranged type magnetic suspension bearing and permanent magnet bias type magnetic suspension bearing are present.
The purpose of the present invention is to propose to it is a kind of simple structure, compact, five degree of freedom active control and radially two can be realized
The non-coupling permanent magnet bias suspension of five-freedom degree magnetic bearing of magnetic circuit in individual free degree magnetic field.
To solve above-mentioned technical problem, the present invention is adopted the technical scheme that：
A kind of 5-freedom permanent magnetism off-set magnetic suspension bearing, including ring-shaped rotor, arrange ring at the axle center of ring-shaped rotor
Shape axial stator, uniform evagination arranges four " U " fonts for being used to arrange controling winding A on the outer surface of ring shaped axial stator
Winding frame, two cantilevers of " U " font winding frame are located at respectively the both sides of ring-shaped rotor and the side of two cantilevers and ring-shaped rotor
Face Jun You gaps, on two cantilevers of " U " font winding frame controling winding A is respectively provided with；
Annular permanent magnet is respectively provided with two sides of ring shaped axial stator, two annular permanent magnets are determined with ring shaped axial
It is sub concentric；
Two annular permanent magnets are all connected with annular radial stator, and two annular radial stators are concentric with ring shaped axial stator；
Equal evagination is symmetrical arranged two "L" shaped winding frames for arranging controling winding B on the outer surface of two annular radial stators,
"L" shaped winding frame is located at the inside of ring-shaped rotor and between having between the end of "L" shaped winding frame and the inwall of ring-shaped rotor
Gap；Four "L" shaped winding frames on two annular radial stators are in cross setting, are respectively provided with "L" shaped winding frame
Controling winding B；
Controling winding B on "L" shaped winding frame is arranged alternately with controling winding A on " U " font winding frame.
5-freedom permanent magnetism off-set magnetic suspension bearing in technical solution of the present invention, four groups of controling windings A are used for controlling to turn
A sub axial freedom and two upset frees degree；On the annular radial stator separated by permanent magnet and ring shaped axial stator
Controling winding B is used for controlling two radial direction frees degree of rotor, and the permanent-magnetic clamp homopolarity of two axial chargings is staggered relatively, is magnetcisuspension
Floating axle holds offer bias magnetic field.
Beneficial effect
Present invention beneficial effect compared with prior art：
5-freedom permanent magnetism off-set magnetic suspension bearing of the present invention, it is simple structure, compact, can realize that five degree of freedom is actively controlled
System and the radially magnetic circuit in two free degree magnetic field are without coupling.
Description of the drawings
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the bias magnetic field in radial stator.
Fig. 3 is the control magnetic field in radial stator.
Fig. 4 is the bias magnetic field in axial stator.
Fig. 5 is the control magnetic field A in axial stator.
Fig. 6 is the control magnetic field B in axial stator.
Wherein, 1, controling winding A；2nd, annular radial stator；3rd, ring shaped axial stator；4th, permanent magnet；5th, controling winding B；
6th, ring-shaped rotor；7th, " U " font winding frame；71st, cantilever；8th, "L" shaped winding frame.
Specific embodiment
It is understandable to become apparent from present disclosure, do further below in conjunction with accompanying drawing 1- Fig. 6 and specific embodiment
Description.
In order that the objects, technical solutions and advantages of the present invention become more apparent, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only to explain the present invention, not
For limiting the present invention.
As shown in figure 1, the 5-freedom permanent magnetism off-set magnetic suspension bearing of the present invention, including ring-shaped rotor 6, two annular footpaths
To stator 2, two permanent magnets 4 and ring shaped axial stator 3.
Two annular radial stators 2, two permanent magnets 4 and ring shaped axial stator 3 are respectively positioned on the inside of ring-shaped rotor 6, ring
Shape axial stator 3 is arranged at the axle center of ring-shaped rotor 6, and uniform evagination arranges four on the outer surface of ring shaped axial stator 3
For arranging " U " the font winding frame 7 of controling winding A, two cantilevers 71 of " U " font winding frame are respectively positioned at ring-shaped rotor
Both sides and two cantilevers and the side Jun You gaps of ring-shaped rotor, on two cantilevers of " U " font winding frame control is respectively provided with
Winding A1.
Two annular permanent magnets 4 are separately positioned on two sides of ring shaped axial stator 3, two annular permanent magnets 4 with
With one heart, two annular permanent magnets are that axial charging and two annular permanent magnet homopolarities are oppositely arranged to ring shaped axial stator 3.
Two annular radial stators 2 connect respectively two annular permanent magnets 4, and two annular radial stators are determined with ring shaped axial
It is sub concentric；Equal evagination is symmetrical arranged two "L" shaped for arranging controling winding B on the outer surface of two annular radial stators
Winding frame 8, "L" shaped winding frame is located at the inwall of the inside of ring-shaped rotor and the end of "L" shaped winding frame and ring-shaped rotor
Between have gap；Four "L" shaped winding frames on two annular radial stators are in cross setting, in "L" shaped winding frame
On be respectively provided with controling winding B5；Controling winding A in controling winding B and " U " font winding frame on "L" shaped winding frame
It is arranged alternately.
5-freedom permanent magnetism off-set magnetic suspension bearing in technical solution of the present invention, four groups of controling windings A are used for controlling to turn
A sub axial freedom and two upset frees degree；On the annular radial stator separated by permanent magnet and ring shaped axial stator
Controling winding B is used for controlling two radial direction frees degree of rotor, and the permanent-magnetic clamp homopolarity of two axial chargings is staggered relatively, is magnetcisuspension
Floating axle holds offer bias magnetic field.
The radial direction free degree controls operation principle：
As shown in Fig. 2 by taking the control of radially certain free degree as an example, if the bias magnetic field set up of permanent magnet as shown in figure 1,
Rotor is caused a deviation from reference position by a disturbance to the right, then side-play amount is passed to controller by displacement transducer, control
Device control power amplifier is passed through in the windings electric current, so as to produce control magnetic field, as shown in Figure 3.
Now, bias magnetic field direction is consistent with control magnetic direction in the air gap of left side, and air gap flux density strengthens, in the air gap of right side
With control magnetic direction conversely, air gap flux density reduces, rotor pulled it back reference by a power to the left in bias magnetic field direction
Position.
The suspension of two frees degree of rotor radial can just be realized by radial stator as two groups.
Axial freedom and upset free degree control operation principle：
As shown in figure 4, the bias magnetic field in axial stator is as shown in Figure 4.If rotor is made it by a disturbance upwards
Deviate reference position, then side-play amount is passed to controller by displacement transducer, controller control power amplifier leads in the windings
Enter electric current, so as to produce control magnetic field, as shown in Figure 5.
Now, bias magnetic field direction is consistent with control magnetic direction in air gap below left side, and air gap flux density strengthens, on left side
Bias magnetic field direction and control magnetic direction are conversely, air gap flux density reduces in the air gap of face；Bias magnetic field side in air gap below right side
To with control magnetic direction it is consistent, air gap flux density strengthen, above right side in air gap bias magnetic field direction and control magnetic direction phase
Instead, air gap flux density reduces, and rotor is pulled it back reference position by a downward power.
If rotor is subject to a clockwise disturbance to cause a deviation from reference position, displacement transducer passes to side-play amount
Controller, controller control power amplifier is passed through in the windings electric current, so as to produce control magnetic field, as shown in Figure 6.Now,
Bias magnetic field direction is consistent with control magnetic direction in air gap below left side, and air gap flux density strengthens, and biases in air gap above left side
Magnetic direction is with control magnetic direction conversely, air gap flux density reduces；Bias magnetic field direction and control magnetic field in the following air gap in right side
In opposite direction consistent, air gap flux density reduces to be strengthened, and bias magnetic field direction is consistent with control magnetic direction in air gap above right side, gas
The close enhancing of gap magnetic, rotor is pulled it back reference position by a power counterclockwise.
Summary, the magnetic suspension bearing of this kind of structure can realize the control of five free degree displacements of rotor.
Part that the present invention does not relate to is communicated with prior art or realized using prior art.
What is be not specifically noted in all description of the invention is prior art or can be realized by existing technology,
It should be appreciated that for those of ordinary skills, can according to the above description be improved or be converted, and it is all this
A little modifications and variations should all belong to the protection domain of claims of the present invention.
Claims (1)
1. a kind of 5-freedom permanent magnetism off-set magnetic suspension bearing, it is characterised in that：Including ring-shaped rotor, in the axle center of ring-shaped rotor
Place arranges ring shaped axial stator, and uniform evagination arranges four and is used to arrange controling winding A on the outer surface of ring shaped axial stator
" U " font winding frame, two cantilevers of " U " font winding frame are respectively positioned at the both sides of ring-shaped rotor and two cantilevers and annular
The side Jun You gaps of rotor, on two cantilevers of " U " font winding frame controling winding A is respectively provided with；
Annular permanent magnet is respectively provided with two sides of ring shaped axial stator, two annular permanent magnets are same with ring shaped axial stator
The heart, two annular permanent magnets are that axial charging and two annular permanent magnet homopolarities are oppositely arranged；
Two annular permanent magnets are all connected with annular radial stator, and two annular radial stators are concentric with ring shaped axial stator；Two
Equal evagination is symmetrical arranged two "L" shaped winding frames for arranging controling winding B, " L " on the outer surface of annular radial stator
Font winding frame is located at the inside of ring-shaped rotor and has gap between the end of "L" shaped winding frame and the inwall of ring-shaped rotor；
Four "L" shaped winding frames on two annular radial stators are in cross setting, and control is respectively provided with "L" shaped winding frame
Winding B；
Controling winding B on "L" shaped winding frame is arranged alternately with controling winding A on " U " font winding frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710006200.1A CN106640965B (en) | 2017-01-05 | 2017-01-05 | A kind of 5-freedom permanent magnetism off-set magnetic suspension bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710006200.1A CN106640965B (en) | 2017-01-05 | 2017-01-05 | A kind of 5-freedom permanent magnetism off-set magnetic suspension bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106640965A true CN106640965A (en) | 2017-05-10 |
| CN106640965B CN106640965B (en) | 2018-08-28 |
Family
ID=58843747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710006200.1A Active CN106640965B (en) | 2017-01-05 | 2017-01-05 | A kind of 5-freedom permanent magnetism off-set magnetic suspension bearing |
Country Status (1)
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001224154A (en) * | 2000-02-10 | 2001-08-17 | Japan Science & Technology Corp | Method and apparatus for multipole magnetically levitating rotation |
| JP2003199288A (en) * | 2001-12-28 | 2003-07-11 | Sankyo Seiki Mfg Co Ltd | Magnetically levitated motor and magnetic bearing device |
| JP2008069964A (en) * | 2006-08-18 | 2008-03-27 | Toru Masuzawa | Hybrid-type magnetic bearing |
| US20090322172A1 (en) * | 2008-06-27 | 2009-12-31 | Korea Advanced Institute Of Science And Technology | Hybrid three-pole active magnetic bearing and method for embodying linear model thereof |
| CN102338160A (en) * | 2011-08-31 | 2012-02-01 | 北京航空航天大学 | Five-degree-of-freedom magnetic bearing |
| CN102506070A (en) * | 2011-11-11 | 2012-06-20 | 北京奇峰聚能科技有限公司 | Outer rotor radial magnetic bearing |
| CN104989727A (en) * | 2015-06-05 | 2015-10-21 | 中国人民解放军国防科学技术大学 | Combined-type five-degree-of-freedom electromagnetic bearing |
| CN106015333A (en) * | 2016-06-30 | 2016-10-12 | 天津飞旋科技研发有限公司 | Mixed radial magnetic bearing of permanent magnetic rotor |
| CN106050918A (en) * | 2016-06-08 | 2016-10-26 | 淮阴工学院 | Permanent magnet biased five-degree-of-freedom integrated magnetic suspension supporting system |
| CN206600361U (en) * | 2017-01-05 | 2017-10-31 | 南京工业大学 | A kind of 5-freedom permanent magnetism off-set magnetic suspension bearing |
-
2017
- 2017-01-05 CN CN201710006200.1A patent/CN106640965B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001224154A (en) * | 2000-02-10 | 2001-08-17 | Japan Science & Technology Corp | Method and apparatus for multipole magnetically levitating rotation |
| JP2003199288A (en) * | 2001-12-28 | 2003-07-11 | Sankyo Seiki Mfg Co Ltd | Magnetically levitated motor and magnetic bearing device |
| JP2008069964A (en) * | 2006-08-18 | 2008-03-27 | Toru Masuzawa | Hybrid-type magnetic bearing |
| US20090322172A1 (en) * | 2008-06-27 | 2009-12-31 | Korea Advanced Institute Of Science And Technology | Hybrid three-pole active magnetic bearing and method for embodying linear model thereof |
| CN102338160A (en) * | 2011-08-31 | 2012-02-01 | 北京航空航天大学 | Five-degree-of-freedom magnetic bearing |
| CN102506070A (en) * | 2011-11-11 | 2012-06-20 | 北京奇峰聚能科技有限公司 | Outer rotor radial magnetic bearing |
| CN104989727A (en) * | 2015-06-05 | 2015-10-21 | 中国人民解放军国防科学技术大学 | Combined-type five-degree-of-freedom electromagnetic bearing |
| CN106050918A (en) * | 2016-06-08 | 2016-10-26 | 淮阴工学院 | Permanent magnet biased five-degree-of-freedom integrated magnetic suspension supporting system |
| CN106015333A (en) * | 2016-06-30 | 2016-10-12 | 天津飞旋科技研发有限公司 | Mixed radial magnetic bearing of permanent magnetic rotor |
| CN206600361U (en) * | 2017-01-05 | 2017-10-31 | 南京工业大学 | A kind of 5-freedom permanent magnetism off-set magnetic suspension bearing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106640965B (en) | 2018-08-28 |
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Effective date of registration: 20221214 Address after: Room 801, Building 8, South Shuangpu Road, Qiaolin District, Pukou District, Nanjing, Jiangsu 210,000 Patentee after: Nanjing Lichuang Intelligent Equipment Co.,Ltd. Address before: 210009 No. 5, New Model Road, Gulou District, Nanjing City, Jiangsu Province Patentee before: Nanjing Tech University |
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